DEMONSTRABLE Meaning of DEMONSTRABLE in English demonstrab|le BrE AmE di ˈmɒn t s trəb | ə l də-; ˈdem ən t s- AmE \ dɪ ˈmɑːn t s-— Preference poll, British English: •ˈ••• 63%, ˈ•••• 37%. ▷ demonstrab|ly li Longman Pronunciation English Dictionary. Английский словарь произношений Longman. 2012